AbstractWe provide sufficient conditions for the existence of subharmonic solutions for equations whose nonlinearity may have a different qualitative behaviour to the right and to the left of the origin. The proofs are based on variational methods
In this note we present mean value characterizations of subharmonic functions related to linear seco...
In this paper, based on a generalized version of the Poincare Birkhoff twist theorem by Franks, we ...
AbstractSome existence theorems are obtained for subharmonic solutions of nonautonomous second order...
We study the problem of existence and multiplicity of subharmonic solutions for a second order nonli...
AbstractWe are concerned with a subharmonic bifurcation from infinity for scalar higher order ordina...
We study the existence of large-amplitude periodic or almost periodic solutions of second order diff...
We are concerned with a subharmonic bifurcation from infinity for scalar higher order ordinary diffe...
Consiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7, Rome / CNR - Consiglio...
We study the existence of subharmonic solutions of the prescribed curvature equation . According to ...
We prove the existence and multiplicity of subharmonic solutions for Hamiltonian systems obtained as...
AbstractWe mainly consider subharmonic bouncing solutions of sublinear second order systems with an ...
AbstractInk this paper, we consider the existence of subharmonic solutions for the problem utt + G′(...
We study the positive subharmonic solutions to the second order nonlinear ordinary differential equa...
We extend a result of J. Andres and K. Pastor concerning scalar time-periodic first order ordinary d...
The amplitude equations of second-harmonic resonance are studied, for wave amplitudes that exhibit b...
In this note we present mean value characterizations of subharmonic functions related to linear seco...
In this paper, based on a generalized version of the Poincare Birkhoff twist theorem by Franks, we ...
AbstractSome existence theorems are obtained for subharmonic solutions of nonautonomous second order...
We study the problem of existence and multiplicity of subharmonic solutions for a second order nonli...
AbstractWe are concerned with a subharmonic bifurcation from infinity for scalar higher order ordina...
We study the existence of large-amplitude periodic or almost periodic solutions of second order diff...
We are concerned with a subharmonic bifurcation from infinity for scalar higher order ordinary diffe...
Consiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7, Rome / CNR - Consiglio...
We study the existence of subharmonic solutions of the prescribed curvature equation . According to ...
We prove the existence and multiplicity of subharmonic solutions for Hamiltonian systems obtained as...
AbstractWe mainly consider subharmonic bouncing solutions of sublinear second order systems with an ...
AbstractInk this paper, we consider the existence of subharmonic solutions for the problem utt + G′(...
We study the positive subharmonic solutions to the second order nonlinear ordinary differential equa...
We extend a result of J. Andres and K. Pastor concerning scalar time-periodic first order ordinary d...
The amplitude equations of second-harmonic resonance are studied, for wave amplitudes that exhibit b...
In this note we present mean value characterizations of subharmonic functions related to linear seco...
In this paper, based on a generalized version of the Poincare Birkhoff twist theorem by Franks, we ...
AbstractSome existence theorems are obtained for subharmonic solutions of nonautonomous second order...